PO'ed

Level select:
Note: this code only works on a standard controller. From the main menu, press and release LS + RS + Up. Press A to start a new game. From the difficulty menu press and release LS + RS + Down. Press A, B or C to select a difficulty level. Press B during the "Begin transmission" display. Highlight a level and press A to start the game at that level with the appropriate inventory.

Enable farts:
Highlight a game from the load game menu. Press LS + RS + B to start the game. Levels with the Butthead monster will be modified by the code.

Full inventory:
Note: this code only works on a standard controller. Press C + X to enter 3D map mode. Rotate the map on any axis. Press P, then LS + A + B + C during rotation of the map back to default view. Ox's inventory will contain all the weapons and the jetpack.

Full ammunition:
Hold LS + RS + Right + B + C and allow Ox to complete at least one backflip. The ammunition for all weapons will be returned to full.

Full health:
Press RS + Down +B during a backflip. Ox's health will be returned to full.

Invulnerability:

Standard controller version
Use the frying pan as the current weapon. Press C(2) to display the weapon select option. Highlight the drill, then press A + RS. The words "KNEEL BEFORE ME!" will appear to confirm code entry.

Flightstick version
Use the frying pan as the current weapon. Hold RS and press A to display the weapon select option. Highlight the drill, then press A + RS. The words "KNEEL BEFORE ME!" will appear to confirm code entry.

Cancel invulnerability:
Enter the weapon selection option. Press A + RS.

See ending sequence:
Save at least one game. From the saved game menu, select Delete and highlight any game. Press A + Right, B + Up, P. The ending sequence to the game will be displayed.

No collisions:
Switch to jetpack mode and kill an alien. Stand on the alien and press C, C to display the weapon select screen. Press LS + Right/Down. The words "FREE! FREE!" will be displayed to confirm code entry. Ox will be able to fly through the walls and move anywhere in the level.

Cancel no collisions:
Switch to jetpack mode and press C(2) to display the weapon select screen. Press LS + Right/Down.

Save game bug:
The save game file can become corrupt on levels where Blob aliens have been killed (Shuttle, Power Plant, Pompous Tartar, and Aclogo). Keep multiple save games and avoid saving after shooting a Blob.

Game bug:
Older model Goldstar 3DO systems will crash when loading certain levels. Use the "Level skip" code to advance past them. An updated version of the game that did have this problem was eventually released by Any Channel, the game's developer.